Construction of incandescent-electric-lamp sockets.



No. 837,055. PA lENTED NOV. 27, 1906.

' G. W. GOODRIDGE.

CONSTRUCTION OF INGAN'DBSGENT ELECTRIC LAMP SOCKETS.

APPLICATION FILED APR. 9, 1906.

I WITNESSES I VENTOR iy/W aww m ATTORNEYS UNITE STATES FATEB T OFFICE.

GILBERT W. GOODRIDGE, OF BRIDGEPORT, CONNECTICUT, ASSIGXOR TO THE BRYANT ELECTRIC COMPANY, OF BRIDGEPOR-T, OOXXECTICUT, A

CORPORATION OF CONNECTICUT.

CONSTRUCTION OF INCA NDESCENT-ELECTRICvLAMP SOCKETS.

Specification of Letters Patent.

Patented nov. 27, 1906.

Application filed A ril 9, 1906. Serial No. 310,865.

To all whom it may concern:

Be it known that I, GILBERT 'W. Goon- RIDGE, a citizen of the United States of America, residing in Bridgeport, county, of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in the Construction of Incandescent- Electric-Lam which the fo owing is a specification.

My invention relates to the construction of incandescent-electric-lamp sockets and the like; and the object of my invention is to provide a means whereby the cap and shell may be more readily attached together and detached than in those constructions in which screw-fastening means are employed and yet so that there will be no danger of the, two parts becoming accidentally or unintentionally detached from each other.

In the accompanying drawings, Figure 1 is a side elevation of the shell and cap detached from each other. Fig. 2 is a vertical section on the line 2 2, Fig. 1. Fig. 3 is a view of the inner face of the cap. Fi 4 is an enlarged sectional view of one of the ockingparts,il1us trating the action when the shell is being insertedinto the cap. Fig. 5 is a similar sectional view illustrating the position of the parts when the shell and cap have been pushed together. Fig. 6 is a perspective view of the fastening parts, and Fig. is a perspective view of a modification.

A is the shell, and B the cap, which, except as to the fastening means, may be of any suitable construction. In the drawings I have shown a common form of socket in which the cap and shell are drawn. sheet metal, the cap being provided with the usual threaded nipple O. The bottom of the, shell A is constructed to fit Within the flange '10 of the cap. The form of fastening means which I prefer to use is on the principle of a spring-latch, and I prefer to mount this spring-latch in the ca For this purpose I make a yoke 11, whic can be fastened into the cap by the fastening of the nipple C in the usual manner. I make the yoke 11 of relatively thin metal and of sufficient elasticity to yield under pressure such as can be applied by finger or thumb and to spring back to normal osition when the pressure is released. On t e outer ends of the two elastic arms of the yoke I secure pins 12, set ra- Sockets and the Like, of

dially with reference to the circumference of the cap and projecting out through notches or openings in the flange 10 of the cap. The

outer ends of these pins may be provided with buttons 13 of suitable size to receive the pressure of finger or thumb in order'to spring "the elastic arms inward when desired. On the ends of these elastic arms I provide a latching means. to enga c with a correspondrug part on the shell to old the latter in the cap when it has been pushed into place. I prefer the construction illustrated in Figs. 1 to 4 6that is to say, the construction in which there are formed on the outer ends of I the arms 11 fingers 14 to engage notches on the shell. For greater security I prefer -to provide each spring-arm with two outwardlyprojecting fingers 14 to engage openings 15, formed in the shell on opposite sides of a notch 16, which is formed in the edge of the shell and which is adapted to pass over the pin 12. As will be seen on reference to Figs. 1 1:0 6, the lower edges of the openings 15 are beveled outwardly to the better engage and hold the inclined projections 14 on the arms 11 and prevent the shell and cap from being accidentally pulled apart.

The engagement of the radial pins 12 with the notches 16 is an im ortant feature, because when the cap and s ell are put together it prevents any rotary movement of the shell within the cap, which rotary movement if allowed might have the effect to spring the elastic catches out of engagement.

As will be readily understood, the positions of the engaging projections and openings on the two parts may be reversed, and I cap and shell to be detachably connected,

one of the said parts having spring-arms with radial push-pins, the other parthaving notches engaging with said radiaPpuShins to pre vent relative-rotary movement of the parts,

and r gagin means to hold the two parts together from eing pulled apart.

2. An incandescent-lamp socket, having a cap a and shell to be detachably' connected, the cap having spring-arms with radial push pins and theshell having notches to engage the said radial push-pins, thespring-arms and shell having engaging parts 7 i ,3. An incandescent-lamp socket, having a cap and shell to he detachably connected;

1pins and pro ecting fingers, and the shell aving notches to engage the pins and open= ings to engage the fingers.

4. An incandescent-lamp socket, having a cap and shell to be detachably connected, the cap having spring-anus with radial pushthe cap having spring-arms with radial pushpins and projecting fingerso'n opposite sides of each push-pin and the shell having notches to engage the pins, and openings on opposite sides of each notch to engage the fingers on the spring-arms.

.5. An incandescent-lampv socket,-having a cap and shell to be detachably connected, the cap'havingspring-ar'ms with radial ush- PLUS projecting through openings in the ange of the cap and the shell having notches to enga e the' radialpush-pihs, the spring-arms and s ell having engaging parts.

{name to this specification in the two subscribing witnesses. Y V GILBERT W. GOODRIDGE Witnesses:

H. W.-GoLnsnoRoUon,

is" F. EUSEELEYI In testimony whereof I, have signed my presence of 

